Six-in-one abdominal exercise device



FIG. 1 is a perspective view of the six-in-one abdominal exercise device showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right view thereof; and,

FIG. 7 is a top view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the six-in-one abdominal exercise device, which form no part of the claimed design. 

CLAIM The ornamental design for a six-in-one abdominal exercise device, as shown and described. 